/*-------------------------------------------------------------------------
 *
 * pg_attrdef.h
 *      definition of the system "attribute defaults" relation (pg_attrdef)
 *      along with the relation's initial contents.
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/catalog/pg_attrdef.h
 *
 * NOTES
 *      the genbki.pl script reads this file and generates .bki
 *      information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_ATTRDEF_H
#define PG_ATTRDEF_H

#include "catalog/genbki.h"

/* ----------------
 *        pg_attrdef definition.  cpp turns this into
 *        typedef struct FormData_pg_attrdef
 * ----------------
 */
#define AttrDefaultRelationId  2604

CATALOG(pg_attrdef,2604)
{
    Oid            adrelid;        /* OID of table containing attribute */
    int16        adnum;            /* attnum of attribute */

#ifdef CATALOG_VARLEN            /* variable-length fields start here */
    pg_node_tree adbin;            /* nodeToString representation of default */
    text        adsrc;            /* human-readable representation of default */
#endif
} FormData_pg_attrdef;

/* ----------------
 *        Form_pg_attrdef corresponds to a pointer to a tuple with
 *        the format of pg_attrdef relation.
 * ----------------
 */
typedef FormData_pg_attrdef *Form_pg_attrdef;

/* ----------------
 *        compiler constants for pg_attrdef
 * ----------------
 */
#define Natts_pg_attrdef                4
#define Anum_pg_attrdef_adrelid            1
#define Anum_pg_attrdef_adnum            2
#define Anum_pg_attrdef_adbin            3
#define Anum_pg_attrdef_adsrc            4

#endif                            /* PG_ATTRDEF_H */
